<template>
  <div>
    <div class="search">
      <input
        v-model = "keyword"
        class="search-input"
        type="text"
        placeholder="输入城市名或者拼音"/>
    </div>
    <div class="search-content" ref="search" v-show="keyword">
      <ul>
        <li class="search-item border-bottom"
            v-for="item of list"
            :key="item.id"
            @click="handleCityClick(item.name)"
        >
          {{item.name}}
        </li>
        <li class="search-item border-bottom" v-show="hasNoData">没有找到匹配数据</li>
      </ul>
    </div>
  </div>
</template>

<script>
  import Bscroll from 'better-scroll'
  export default {
    name: 'CitySearch',
    props:{
      cities: Object
    },
    computed:{
      hasNoData: function () {
        return !this.list.length
      }
    },
    data: function(){
      return {
        keyword: '',
        list: [],
      }
    },
    methods: {
      handleCityClick: function (city) {
        this.$store.commit('changeCity', city)
        this.$router.push("/")
      }
    },
    watch:{
      keyword:function () {
        const result = [];
        if(!this.keyword){
          this.list = [];
          return
        }
        for (let i in this.cities){
          this.cities[i].forEach((value) => {
            if(value.spell.indexOf(this.keyword) > -1 || value.name.indexOf(this.keyword) > -1) {
              result.push(value);
            }
          })
        }
        this.list = result;
      }
    },
    mounted() {
      this.scroll = new Bscroll(this.$refs.search)
    }
  }
</script>

<style lang="stylus" scoped>
  @import "~styles/varibles.styl"
  .search
    padding: 0 .1rem
    height: .72rem
    background: $bgColor
    .search-input
      box-sizing: border-box
      height: .62rem
      line-height: .62rem
      padding: 0 .1rem
      width: 100%
      text-align: center
      border-radius: .06rem
      color: #666
  .search-content
    z-index: 1
    overflow: hidden
    position: absolute
    top: 1.58rem
    left: 0
    right: 0
    bottom: 0
    background: #eee
    .search-item
      line-height: .62rem
      padding-left: .2rem
      color: #666
      background: #fff

</style>
